WATCH: Colorado cop beats handcuffed suspect bloody

A Colorado cop was fired and convicted of a misdemeanor after he beat a handcuffed suspect bloody during a stationhouse roughing-up caught on his body camera.

Officer Mark Magness was terminated from the small Federal Heights police department in suburban Denver after the December incident involving an unnamed victim arrested for an unknown crime. The shocking, nearly 10-minute video, obtained by KMGH-TV, shows Magness pull the man, hands cuffed behind his back, from a patrol car as he swings him around and slams him face first into a wall.

Once inside a cell, the video shows the suspect was uncuffed when he takes a swing at the officer, who began to beat on the man as he cowered in a corner with his hands covering his head.

That 10-second portion of the attack is punctuated by Magness yelling, “Stop resisting! Stop resisting!” as he held the man’s head on a bench while he tried to again cuff the suspect.

Another officer warns Magness the whole incident is being recorded, according to KMGH, but he doesn’t slow down. He throws a chair across the room before slamming the suspect into it and strapping him in.

The suspect reportedly yelled, “F–k you!” at the officer during the struggle.

“Say nothing else!” Magness orders.

“I’m sorry sir,” the man says as blood drips from his chin and Magness presses his fingers into the man’s eyes. “I won’t do nothing else.”

Body cam footage shows Officer Mark Magness smash the suspect’s face into a door during a prolonged beating that left the man bloodied.

Magness was charged with attempted assault shortly after the December incident and he pleaded guilty in June. Police chief Karl Wilmes told the Daily News that video of the assault and the reported excessive use of force were reported to prosecutors immediately after the incident. Magness was quickly terminated from the 24-person police department, Wilmes said.

The violent altercation is not the first time Magness has been arrested — or accused of excessive force while on the job.

In 2009, just one year into his stint with the department, Magness approached Dennis Discua unprovoked and threw him to the ground, breaking his arm, before Magness left the scene.

Magness never reported the incident, but returned to the scene after Discua and a witness called 911.

Magness eventually pleaded guilty to a reckless endangerment charge and paid a $517 fine but was not fired because it was a misdemeanor.

“When I saw [the new video] I remembered when he just grabbed me and I didn’t resist or nothing and he just pushed me and throw me all the way down,” Discua told the news station. “Police are supposed to be for (helping) people, not (hurting) people.”